TLC2543

12 位 66kSPS ADC 串行 输出，可编程 MSB/LSB 优先，可编程断电/输出数据长度，11 通道

The C and TLC2543I are 12-bit, switched-capacitor, successive-approximation, analog-to-digital converters. Each device, with three control inputs [chip select CS\\, the input-output clock, and the address input DATA INPUT], is designed for communication with the serial port of a host processor or peripheral through a serial 3-state output. The device allows high-speed data transfers from the host.

In addition to the high-speed converter and versatile control capability, the device has an on-chip 14-channel multiplexer that can select any one of 11 inputs or any one of three internal self-test voltages. The sample-and-hold function is automatic. At the end of conversion, the end-of-conversion EOC output goes high to indicate that conversion is complete. The converter incorporated in the device features differential high-impedance reference inputs that facilitate ratiometric conversion, scaling, and isolation of analog circuitry from logic and supply noise. A switched-capacitor design allows low-error conversion over the full operating temperature range.

The TLC2543C is characterized for operation from TA = 0°C to 70°C. The TLC2543I is characterized for operation from TA = –40°C to 85°C. The TLC2543M is characterized for operation from TA = –55°C to 125°C.

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12-Bit-Resolution A/D Converter

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10-us Conversion Time Over Operating Temperature

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11 Analog Input Channels

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3 Built-In Self-Test Modes

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Inherent Sample-and-Hold Function

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Linearity Error . . . ±1 LSB Max

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On-Chip System Clock

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End-of-Conversion Output

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Unipolar or Bipolar Output Operation Signed Binary With Respect to 1/2 the Applied Voltage Reference

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Programmable MSB or LSB First

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Programmable Power Down

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Programmable Output Data Length

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CMOS Technology

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Application Report Available

Microcontroller Based Data Acquisition Using the TLC2543 12-bit Serial-Out ADC SLAA012